PSLE Wesley spent
37 of his money to buy 4 identical staplers. He spent the rest of his money to buy another 5 such staplers and 3 identical files.
- What fraction of Wesley's money was spent to buy the 3 files? Give your answer in the simplest form.
- For every 6 files bought, 1 additional file was given free. How many files would Wesley get in total if he were to spend all his money to buy files only?
(a)
Cost of 4 staplers =
37 of his money
Cost of 1 stapler
=
37 ÷ 4
=
37 x
14 =
328 of his money
Fraction of Wesley's money spent to buy the 5 staplers and 2 files
= 1 -
37 =
47 Cost of 5 staplers
= 5 x
328 =
1528 of his money
Fraction of Wesley's money spent to buy the 3 files
=
47 -
1528 =
1628 -
1528 =
128 (b)
128 of Wesley's money = 3 files
2828 of Wesley's money = 28 x 3 = 84 files
Number of free files
= 84 ÷ 6
= 16 r 4
Total number of files that Wesley would get
= 84 + 16
= 100
Answer(s): (a)
128; (b) 100